Energy Transformations

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as from chemical energy to electrical energy.

Front

What is the energy chain from the sun to grass to cow?

Back

Light and thermal energy from the sun is transformed into chemical energy in grass, which is then transformed into chemical energy in cows when they eat the grass.

Front

What energy transformation occurs when a flashlight is turned on?

Back

Chemical energy from the batteries is transformed into electrical energy, which is then transformed into light energy.

Front

What energy transformations take place when a battery-operated radio is in use?

Back

Chemical energy from the batteries is transformed into electrical energy, which is then transformed into sound energy.

Front

What type of energy is food energy stored in your muscles?

Back

Chemical energy.

Front

What is an example of energy transformation in a lamp?

Back

Electrical energy is transformed into light energy when a lamp is plugged into a wall socket.

Front

What is the first step in the energy transformation chain for photosynthesis?

Back

Light energy from the sun is absorbed by plants.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential and kinetic energy in an object, which is used to do work.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like food or batteries.

Front

What happens to energy in a closed system?

Back

In a closed system, energy is conserved; it can change forms but cannot be created or destroyed.